Gree GMV-ND48A/A-T(U) Bedienungsanleitung
Gree
Klimaanlage
GMV-ND48A/A-T(U)
Lesen Sie kostenlos die đ deutsche Bedienungsanleitung fĂŒr Gree GMV-ND48A/A-T(U) (22 Seiten) in der Kategorie Klimaanlage. Dieser Bedienungsanleitung war fĂŒr 25 Personen hilfreich und wurde von 2 Benutzern mit durchschnittlich 4.5 Sternen bewertet
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Commercial Air Conditioners
GMV DC Air Handler
Models:
GMV-ND09A/A-T(U)
GMV-ND12A/A-T(U)
GMV-ND18A/A-T(U)
GMV-ND24A/A-T(U)
GMV-ND30A/A-T(U)
GMV-ND36A/A-T(U)
GMV-ND42A/A-T(U)
GMV-ND48A/A-T(U)
GMV-ND54A/A-T(U)
Preface
For correct installation and operation, please read all instructions carefully. Before reading
the instructions, please be aware of the following items:
(1) For the safe operation of this unit, please read and follow the instructions carefully.
(2) ring operation, total capacity of indoor units should not exceed the total capacity of Du
outdoor units. Otherwise, poor effect of cooling or heating may result.
(3) Direct operators or maintainers should well keep this manual.
(4) If this unit fails to operate normally, please contact our service center as soon as
possible and provide the following information:
ïŹ Content on the nameplate (model number, cooling capacity, production code,
ex-factory date).
ïŹ Malfunction details (before and after the malfunction occurs).
(5) Each unit has been strictly tested and proved to be qualiîed before ex-factory. In order
to prevent units from being damaged or operating normally because of improper
disassembly, please do not disassemble the unit by yourself. If you need to
disassemble and check units, please contact our service center. We will send
specialists to guide the disassembly.
(6) All graphics in this manual is only for your reference. For sales or production reasons,
these graphics are subject to change by manufacturer without prior notice.
User Notice
ïŹ This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety. Children should be supervised to ensure that they
do not play with the appliance.
Correct Disposal of this product
This marking indicates that this product should not be disposed with other
household wastes. To prevent possible harm to the environment or human
health from uncontrolled waste disposal, recycle it responsibly to promote the
sustainable reuse of material resources. To return your used device, please
use the return and collection systems or contact the retailer where the product
was purchased. They can take this product for environmental safe recycling.
Exception Clauses
Manufacturer will bear no responsibilities when personal injury or property loss is caused
by the following reasons:
(1) Damage the product due to improper use or misuse of the product;
(2) Alter, change, maintain or use the product with other equipment without abiding by
the instruction manual of manufacturer;
(3) After veriîcation, the defect of product is directly caused by corrosive gas;
(4) After veriîcation, defects are due to improper operation during transportation of
product;
(5) Operate, repair, maintain the unit without abiding by instruction manual or related
regulations;
(6) After veriîcation, the problem or dispute is caused by the quality speciîcation or
performance of parts and components that produced by other manufacturers;
(7) The damage is caused by natural calamities, bad using environment or force
majeure.
Contents
1 Safety Precautions ............................................................................................ 1
2 Product Introduction ......................................................................................... 3
2.1 Names of Key Components 3.....................................................................................
2.2 Rated Working Condition ......................................................................................... 3
3 Preparative for Installation ................................................................................ 4
3.1 Pre-Installation Instruction ........................................................................................ 4
3.2 Important Safety Instructions .................................................................................... 4
3.3 Requirements for Communication Line 6....................................................................
3.4 Wiring Requirements ................................................................................................ 7
4 Installation Instructions .................................................................................... 8
4.1 Dimension Data 8.......................................................................................................
4.2 Location ................................................................................................................... 9
4.3 Piping Work ............................................................................................................ 10
4.4 Condensate Removal ............................................................................................. 11
4.5 Ductwork ................................................................................................................ 11
4.6 Installation of Wired Controller ............................................................................... 12
5 Wiring Work ..................................................................................................... 12
5.1 Connection of Wire and Patch Board Terminal ....................................................... 12
5.2 Power Cord Connection ......................................................................................... 13
5.3 Connection of Communication Wire between Indoor Unit and Outdoor Unit (or indoor
unit) .............................................................................................................................. 13
5.4 Connect Communication Wire of Wired Controller ................................................. 14
5.5 Illuminate for Connection of Wired Controller and Indoor Units Network ................ 14
6 Routine Maintenance ....................................................................................... 16
6.1 Cleaning of Filter .................................................................................................... 16
6.2 Maintenance before the Seasonal Use ................................................................... 16
6.3 Maintenance after the Seasonal Use ...................................................................... 16
7 Table of Error Codes for Indoor Unit .............................................................. 17
8 Troubleshooting .............................................................................................. 17
GMV DC Air Handler
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1 Safety Precautions
WARNING
(1) This product canât be installed at corrosive, inflammable or explosive environment or the place with
special requirements, such as kitchen. Otherwise, it will aîect the normal operation or shorten the service
life of the unit, or even cause îre hazard or serious injury. As for above special places, please adopt
special air conditioner with anti-corrosive or anti-explosion function.
(2) Follow this instruction to complete the installation work. Please carefully read this manual before unit
(3) startup and service.
(4) Wire size of power cord should be large enough.The damaged power cord and connection wire should
be replaced by exclusive cable.
(5) After connecting the power cord, please îx the electric box cover properly in order to avoid accident.
(6) Never fail to comply with the nitrigen charge requirements.Charge nitrogen when welding pipes.
(7) Never short-circiut or cancel the pressure switch to prevent unit damage.
(8) Please îrstly connect the wired controller before energization, otherwise wired controller can not be
used.
(9) Before using the unit, please check if the piping and wiring are correct to avoid water leakage, refrigerant
leakage, electric shock, or îre etc..
(10) Do not insert îngers or objects into air outlet/inlet grille.
(11) Open the door and window and keep good ventilation in the room to avoid oxygen deîcit when the gas/oil
supplied heating equipment is used.
(12) Never start up or shut off the air conditioner by means of directly plug or unplug the power cord.
(13) Turn oî the unit after it runs at least îve minutes; otherwise it will inîuence oil return of the compressor.
(14) Do not allow children operate this unit.
(15) Do not operate this unit with wet hands.
(16) Turn oî the unit or cut off the power supply before cleaning the unit, otherwise electric shock or injury
may happen.
(17) Never spray or îush water towards unit, otherwise malfunction or electric shock may happen.
(18) Do not expose the unit to the moist or corrosive circumstances.
(19) Under cooling mode, please don't set the room temperature too low and keep the temperature diîerence
between indoor and outdoor unit within 5°C (41°F).
(20) User is not allowed to repair the unit. Fault service may cause electric shock or îre accidents. Please
contact Gree appointed service center for help.
(21) Before installation, please check if the power supply is in accordance with the requirements speciîed on
the nameplate. And also take care of the power safety.
GMV DC Air Handler
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WARNING
(22) Installation should be conducted by dealer or qualiîed personnel. Please do not attempt to install the unit
by yourself. Improper handling may result in water leakage, electric shock or îre disaster etc..
(23) Be sure to use the exclusive accessory and part to prevent the water leakage, electric shock and îre
accidents.
(24) Make sure the unit can be earthed properly and soundly after plugging into the socket so as to avoid
electric shock. Please do not connect the ground wire to gas pipe, water pipe, lightning rod or telephone
line.
(25) Electrify the unit 8 hours before operation. Please switch on for 8 hours before operation. Do not cut oî
the power when 24 hours short-time halting (to protect the compressor).
(26) If refrigerant leakage happens during installation, please ventilate immediately. Poisonous gas will
emerge if the refrigerant gas meets îre.
(27) Volatile liquid, such as diluent or gas will damage the unit appearance. Only use soft cloth with a little
neutral detergent to clean the outer casing of unit.
(28) If anything abnormal happens (such as burning smell), please power oî the unit and cut off the main
power supply, and then immediately contact Gree appointed service center.If abnormality keeps going,
the unit might be damaged and lead to electric shock or îre.
Any personal injury or property loss caused by improper installation, improper debug,
unnecessary repair or not following the instructions of this manual should not be the
responsibility of Gree Electric Appliances, Inc. of Zhuhai.
GMV DC Air Handler
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2 Product Introduction
2.1 Names of Key Components
Fig 2.1
2.2 Rated Working Condition
Indoor Side Condition
Outdoor Side Condition
Dry Bulb Temp°C(°F)
Wet Bulb Temp
°C(°F)
Dry Bulb Temp°C(°F)
Wet Bulb Temp
°C(°F)
Rated Cooling
27(80.6)
19(66.2)
35(95)
24(75.2)
Rated Heating
20(68.0)
15(59.0)
7(44.6)
6(42.8)
Indoor Unit Working Temperature Range: 16°C (60.8 °F) ~32°C (89.6 °F)
GMV DC Air Handler
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3 Preparative for Installation
3.1 Pre-Installation Instruction
3.1.1 Checking Product Received
After receiving the product, please check if there is any damage caused by transportation.
Shipping damage is the responsibility of the carrier. Verify the model number, speciîcations and
accessories are correct prior to installation. The distributor or manufacturer will not accept
claims from dealers for transportation damage or installation of incorrectly shipped units.
3.1.2 Before Installation
Carefully read all instructions for the installation prior to installing product. Make sure each
step or procedure is understood and any special considerations are taken into account before
starting installation. Assemble all tools, hardware and supplies needed to complete the
installation. Some items may need to be purchased locally. Make sure everything needed to
install the product is on hand before starting.
3.1.3 Codes & Regulations
This product is designed and manufactured to comply with national codes. It is installerâs
responsibilities to install the product in accordance with such codes and/or any prevailing local
codes/regulations. The manufacturer assumes no responsibilities for equipment installed in
violation of any codes or regulations.
3.1.4 Replacement Parts
When reporting shortages or damages, or ordering repair parts, give the complete product
model and serial numbers as stamped on the product. Replacement parts for this product are
available through your contractor or local distributor.
3.2 Important Safety Instructions
Recognize Safety Symbols, Words, and Labels
The following symbols and labels are used throughout this manual to indicate immediate or
potential hazards. It is the ownerâs responsibility to read and comply with all safety information
and instructions accompanying these symbols. Failure to heed safety information increases the
risk of serious personal injury or death, property damage and/or product damage.
DANGER: Immediate hazards which will result in property damage, product damage,
severe personal injury or death.
WARNING: Hazards or unsafe pratices could result in property damage, product
damage, severe personal injury or death.
CAUTION: Hazards or unsafe practices which may result in property damage,
product damage, severe personal injury or death.
GMV DC Air Handler
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WARNING: Before serving or installing this equipment. The electrical power to this
unit must be in the âoffâ position. Caution, more than one disconnect may exist. Failure to
observe this warning may result in an electrical shock that can cause personal injury or death.
WARNING: The United States environmental protection agency (âepaâ) has issued
various regulations regarding the introduction and disposal of refrigerants introduced into this
unit. Failure to follow these regulations may harm the enviroment and can lead to the imposition
of substantial înes. These regulations may vary due to the passage of laws. A certiîed
technician must perform the installation and service of this product. Should questions arise,
contact your local epa ofîce.
WARNING: Due to high system pressure and electrical shock in potential,
installation and service work can be dangerous. Only trained and qualiîed personnels are
permitted to install or service this equipment. Observe all warnings contained in this manual
and labels/tags attached to the equipment.
WARNING: This product is factory shipped for use with a 208-230/1/60 electrical
power supply. This air handler must not be reconîgured to operate with any other power supply.
WARNING: The unit must have an uninterrupted, unbroken electric grounding to
minimize the possibility of personal injury if an electric fault occurs. The electric grounding
circuit may consist of an appropriate sized power cord which connected with the grounding
piece located in the unit control box and also connecting to the building electric service panel.
Other methods of grounding are permitted if performed in accordance with the ânational electric
codeâ (nec)/ âamerican national standards instituteâ (ansi)/ ânational fire protection associationâ
(nfpa) 70 and local/state codes. In canada, electric grouding conforms to the canadian electric
code csa c22.1. failure to observe this warning can result in electrical shock that can cause
personal injury.
Special warning for installation of furnaces or air handling units in enclosed areas,
such as garages, utility rooms or parking areas.
Carbon monoxide producing devices (such as an automobile, space heater, gas water
heater, etc.) should not be operated in enclosed areas such as unventilated garages, utility
rooms or parking areas because of the danger of carbon monoxide (CO) poisoning resulting
GMV DC Air Handler
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from the exhaust emissions.If a furnace or air handler is installed in an enclosed area such as a
garge, utility room or parking area and a carbon monoxide producing device is operated therein,
there must be adequate ventilation directly to outside.
This ventilation is necessary to avoid the danger of CO poisoning which can occur if a
carbon monoxide producing device continues to operate in the enclosed area. Carbon
monoxide emission can be (re)circulated throughout the building if the furnace or air handler is
operating in any mode.
CO can cause serious illness including permanent brain damage or death.
3.3 Requirements for Communication Line
Note:
If the unit is installed in the place with strong electromagnetic interference, shielded wire
must be applied on the communication wire between indoor unit and wired controller. Twisted
pair line with shielding function must be applied on the communication wire between indoor unit
and indoor unit (outdoor unit).
3.3.1 Select communication line for indoor unit and wired controller
Fig 3.3.1
Wire type
Total length of
communication wire
between indoor unit and
wired controller (m/feet)
Wire diameter
(AWG)
Wire standard
Remark
Light/Ordinary
polyvinyl chloride
sheathed cord.
(UL60335-2011)
Lâ€250(850)
2Ă18~2Ă16
UL60335-2011
1. Total length of
communication cable can't
exceed 250m (850feet).
2. The cord shall be Circular
cord (the cores shall be
twisted together).
3. If unit is installed in places
with intense magnetic îeld or
strong interference, it is
necessary to use shielded
wire.
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3.3.2 Select communication line for indoor unit and outdoor unit
Fig 3.3.2
Wire type
Total length of
communication wire
between indoor unit and
indoor unit(outdoor unit)
(m/feet)
Wire diameter
(AWG)
Wire standard
Remark
(communication
line for indoor unit)
Light/Ordinary
polyvinyl chloride
sheathed cord.
(UL60335-2011)
Lâ€1000(3280)
â„2Ă18
UL60335-2011
1. If the wire diameter is
enlarged to 18AWG, the
total communication cable
length can reach 1500m
(4920 feet).
2. The cord shall be Circular
cord (the cores shall be
twisted together).
3. If unit is installed in
places with intense
magnetic îeld or strong
interference, it is necessary
to use shielded wire.
(communication
line for outdoor
unit)
Light/Ordinary
polyvinyl chloride
sheathed cord.
(UL60335-2011)
Lâ€1000(3280)
â„2Ă18
UL60335-2011
3.4 Wiring Requirements
(1) Power Cord Size and Air Switch Capacity
Model
Power Cord Size
Air Switch
apacity
(A)
Minimum Sectional
Area of Ground
Wire(AWG)
Minimum Sectional
Area of Power
Cord(AWG)
GMV-ND09A/A-T(U)
208/230V-1Ph-60Hz
15
18
18
GMV-ND12A/A-T(U)
15
18
18
GMV-ND18A/A-T(U)
15
18
18
GMV-ND24A/A-T(U)
15
18
18
GMV-ND30A/A-T(U)
15
18
18
GMV-ND36A/A-T(U)
15
18
18
GMV-ND42A/A-T(U)
15
18
18
GMV-ND48A/A-T(U)
15
18
18
GMV-ND54A/A-T(U)
15
18
18
(1) Use copper wire only as unitâs power cord. Operating temperature should be within its rated value.
(2) If the power cord is more than 15 m (49-1/4 feet) long, please increase properly the sectional area of
power cord to avoid overload, which may cause accident.
GMV DC Air Handler
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(3) Above selection requirements: Power cord size is based on BV single- re wire (2~4pc) at 40° (104°F) co
Cambient temperature when laying across plastic pipe. Air switch is D type and used at 40°C (104°F). If
actual installation condition varies, please lower the capacity appropriately according to the
speciîcations of power cord and air switch provided by manufacturer.
(4) Install cut-oî device near the unit. The minimum distance between each stage of cut-oî device should
be 3 mm (1/8 inch) (The same for both indoor unit and outdoor unit).
4 Installation Instructions
4.1 Dimension Data
Fig 4.1
Unit: Inch (mm)
MODEL
DIMENSION
W
D
H
A
B
GMV-ND09A/A-T(U)
18-1/8"(460)
21-1/4"(540)
43-1/2"(1105)
11-5/8"(295)
16-3/4"(426)
GMV-ND12A/A-T(U)
18-1/8"(460)
21-1/4"(540)
43-1/2"(1105)
11-5/8"(295)
16-3/4"(426)
GMV-ND18A/A-T(U)
18-1/8"(460)
21-1/4"(540)
43-1/2"(1105)
11-5/8"(295)
16-3/4"(426)
GMV-ND24A/A-T(U)
18-1/8"(460)
21-1/4"(540)
43-1/2"(1105)
11-5/8"(295)
16-3/4"(426)
GMV-ND30A/A-T(U)
18-1/8"(460)
21-1/4"(540)
43-1/2"(1105)
11-5/8"(295)
16-3/4"(426)
GMV-ND36A/A-T(U)
21-1/4"(540)
21-1/4"(540)
48-1/4"(1224)
11-5/8"(295)
20"(508)
GMV-ND42A/A-T(U)
21-1/4"(540)
21-1/4"(540)
48-1/4"(1224)
11-5/8"(295)
20"(508)
GMV-ND48A/A-T(U)
24-7/8"(630)
21-1/4"(540)
48-1/4"(1224)
11-5/8"(295)
20"(508)
GMV-ND54A/A-T(U)
24-7/8"(630)
21-1/4"(540)
48-1/4"(1224)
11-5/8"(295)
20"(508)
GMV DC Air Handler
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4.2 Location
4.2.1 Installation Site
ï” A place where cool air can be distributed throughout the room.
ï” A place where condensation water is easily drained out.
ï” A place that can bear the weight of indoor unit.
ï” A place which is easy for maintenance.
ï” A place where easy connection with the outdoor unit is available.
ï” A place where is 1m or more away from other electric appliances such as television,
audio device, etc.
ï” Avoid a location where there is heat source, high humidity or inîammable gas.
ï” Do not place the unit near a laundry, a bath, a shower or a swimming pool.
ï” Be sure that the installation conforms to the installation dimension diagram.
ï” The space around the unit is adequate for ventilation.
4.2.2 Air Handler
WARNING: This air handler is designed for indoor installation only. Do not install it
outdoors.
When installing the air handler, take consideration to minimize the length of refrigerant
tubing as much as possible. Do not install the air handler in a location either above or below the
condenser that violates the instructions provided with the condenser. Service clearance is to
take precedence. Allow a minimum of 24â in front of the unit for service clearance. When
installing in an area directly over a înished ceiling (such as an attic), an emergency drain pan is
required directly under the unit. See local and state codes for requirements. When installing this
unit in an area that may become wet, elevate the unit with a sturdy, non-porous material. In
installations that may lead to physical damage (i.e. a garage) it is advised to install a protective
barrier to prevent such damage.
This air handler is designed for a complete supply and return ductwork system. Do not
operate this product without all ductwork attached.
Based upon the actual conditions, if air handler is installed as Fig 4.2(A), the air handler
should be concealed in a speciîc room or space and make sure the air handler is not
accessible to the general public.
Based upon the actual conditions, if air handler is installed as Fig 4.2(B), make sure that
there is enough space for care and maintenance and the height between the air handler and
ground is above 2500mm. And the air handler is not accessible to the general public.
GMV DC Air Handler
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(A) (B)
Fig 4.2
4.3 Piping Work
4.3.1 Speciîcation of Connection Pipe
Model
External Diameter (inch)
Gas Pipe(in)
Liquid Pipe(in)
GMV-ND09A/A-T(U)
3/8
1/4
GMV-ND12A/A-T(U)
1/2
1/4
GMV-ND18A/A-T(U)
5/8
3/8
GMV-ND24A/A-T(U)
5/8
3/8
GMV-ND30A/A-T(U)
5/8
3/8
GMV-ND36A/A-T(U)
5/8
3/8
GMV-ND42A/A-T(U)
5/8
3/8
GMV-ND48A/A-T(U)
5/8
3/8
GMV-ND54A/A-T(U)
5/8
3/8
4.3.2 Piping Preparation
All cut ends are to be round, burr free, and cleaned. Failure to follow this practice
increases the chances for refrigerant leakage.
Fig 4.3
GMV DC Air Handler
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4.4 Condensate Removal
(1) It is not allowed to connect the condensate drain pipe into waste pipe or other
pipelines which are likely to produce corrosive or peculiar smell to prevent the smell
from entering indoors or corrupt the unit.
(2) It is not allowed to connect the condensate drain pipe into rain pipe to prevent rain
water from pouring in and cause property loss or personal injury.
(3) Condensate drain pipe should be connected into special drain system for air
conditioner.
(4) The drain pan has primary and secondary drain connection (Figure 4.4). Condensate
removal is performed by attaching a 3/4â PVC pipe to the evaporator coil pan and
terminated in accordance with local or state Plumbing/HVAC codes. The installation
must include a style trap that is located closely to the evaporator coil. Do not âPâ
over-tighten the drain connection(s) in order to prevent possible damage to the
evaporator drain pan. See Fig 4.4 for details of a typical condensate line trap. âPâ
Fig 4.4
4.5 Ductwork
This air handler is designed for a complete supply and return ductwork system.
WARNING: Do not operate the unit without all ductwork completed.
Do not operate this product without all ductwork attached.
Inadequate ductwork that restricts airîow can result in improper performance and
compressor or heater failure. Ductwork is to be constructed in a manner that limits restrictions
and maintains suitable air velocity. Ductwork is to be sealed to the unit in a manner that will
prevent leakage.
Return Ductwork: Do not terminate the return ductwork in an area that can introduce toxic,
or objectionable fumes/odors into the ductwork. The return ductwork is to be introduced into the
air handler bottom (upîow conîguration).
Return Air Filters: Each installation must include a return air îlter. This îltering may be
performed at the air handler or externally such as a return air îlter grille.
GMV DC Air Handler
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4.6 Installation of Wired Controller
Please refer to User Manual of Wired Controller for the installation details.
Note: When installation is înished, the unit must be tested and debugged before
operation. Please refer to Instruction Manual of ODU for auto addressing and debugging
details.
5 Wiring Work
WARNING
Before obtaining access to terminals, all supply circuits must be disconnected.
(1) Units must be earthed securely, or it may cause electric shock.
(2) Please carefully read the wiring diagram before carry out the wiring work, incorrect wiring could cause
malfunction or even damage the unit.
(3) The unit should be powered by independent circuit and speciîc socket.
(4) The wiring should be in accordance with related regulations in order to ensure the units reliable running.
(5) Install circuit breaker for branch circuit according to related regulations and electrical standards.
(6) Keep cable away from refrigerant pipings, compressor and fan motor.
(7) The communication wires should be separated from power cord and connection wire between indoor unit
and outdoor unit.
(8) Adjust the static pressure via wired controller according to site circumstance.
(9) If the supply cord is damaged, it must be replaced by manufacturer, its service agent or similarly qualiîed
persons in order to avoid a hazard.
5.1 Connection of Wire and Patch Board Terminal
(1) The connection of wire (as shown in îg 5.1.1)
1) Strip about 25mm (1 inch) insulation of the wire end by stripping and cutting tool.
2) Remove the wiring screws on the terminal board.
3) Shape the tail of wire into ring by needle nose plier, and keep the gauge of ring in
accordance with screw.
4) Use the screwdriver for tightening the terminal.
(2) The connection of stranded wire (as shown in îg 5.1.2)
1) Strip about 10mm (3/8 inch) insulation of the end of stranded wire by stripping and
cutting tool.
2) Loosen the wiring screws on terminal board.
3) Insert the wire into the ring tongue terminal and tighten by crimping tool.
4) Use the screwdriver for tightening the terminal.
GMV DC Air Handler
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Fig 5.1.1 Fig 5.1.2
5.2 Power Cord Connection
NOTICE! All indoor units must be uniîed of power supply so that they can be powered
ON/OFF at the same time.
Fig 5.2
â For units with single-phase power supply.
(1) Detach the electric box lid.
(2) Let the power cord pass through the wiring through-holes.
(3) Connect the power cord to terminal "L, N, ".
(4) Fix the power cord with wiring clamp.
5.3 Connection of Communication Wire between Indoor Unit and
Outdoor Unit (or indoor unit)
(1) Detach the electric box lid.
(2) Let the Communication cable pass through the wiring through-holes.
(3) Connect the communication wire to terminal D1 and D2 of indoor 4-bit wiring board,
as shown in îg 5.3.1.
Fig 5.3.1 Fig 5.3.2
GMV DC Air Handler
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(4) Fix the communication cable with clamp of electric box.
(5) For more reliable communication, make sure connect the terminal resistor to the most
downstream IDU of the communication bus (terminal D1 and D2), as shown in îg
5.3.2, terminal resistor is provided with each ODU.
5.4 Connect Communication Wire of Wired Controller
(1) Open electric box cover of indoor unit.
(2) Let the communication wire go through the rubber ring.
(3) Connect the communication wire to terminal H1 and H2 of indoor 4-bit wiring board.
(4) Fix the communication wire with wire clip on the electric box.
(5) Wiring instructions of remote receiving light board and wired controller:
1) Fig 5.4.1 shows the installation of wired controller.
Fig 5.4.1
2) Wired controller and receiving light board can be installed at the same time. When
operating through a remote controller, both wired controller and the receiving light
board can receive the signals.
5.5 Illuminate for Connection of Wired Controller and Indoor Units
Network
(1) Communication wire of indoor unit and outdoor unit (or indoor unit) is connected to D1,
D2.
(2) Wired controller is connected to H1, H2.
(3) One indoor unit can connect two wired controllers that must be set as master one and
slave one.
(4) One wired controller can control 16 indoor unitS in maximum at the same time (As
shown in îg5.5).
(1) The type of indoor units must be the same if they are controlled by the same wired controller.
(2) When the indoor unit is controlled by two wired controllers, the addresses of the two wired controllers
should be diîerent through address setting. Address 1 is for main controller; Address 2 is for slave
controller. Detailed setting please refer to the instruction manual of wired controller.
GMV DC Air Handler
15
Fig 5.5
GMV DC Air Handler
16
6 Routine Maintenance
(1) Do turn oî the unit and cut off the main power supply when cleaning the air conditioner to avoid electric
shock or injury.
(2) Stand at solid table when cleaning the unit.
(3) Do not clean the unit with hot water whose temperature is higher than 45°C to prevent fade or
deformation.
(4) Do not dry the îlters by îre, or it may catch îre or become deformed.
(5) Clean the îlter with a wet cloth dipped in neutral detergent.
(6) Please contact after-sales service staî if there is abnormal situation.
6.1 Cleaning of Filter
(1) Remove the îlters from inlet of IDU. Use a vacuum cleaner to remove dust. If the
îlters are dirty, wash them with warm water and mild detergent, and dry the îlters in
the shade.
(2) If the unit used in the environment with much dust, please clean it regularly. (Usually
once every two weeks).
6.2 Maintenance before the Seasonal Use
(1) Check if the air inlet and air outlet of indoor and outdoor unit are blocked.
(2) Check if securely grounded.
(3) Check if all the power cord and communication cable are securely connected.
(4) Check if any error code displayed after energized.
6.3 Maintenance after the Seasonal Use
(1) Set the unit in fan mode for half a day in a sunny day to dry the inner part of unit;
(2) please cut off power supply for energy When the unit wonât be used for a long time,
saving; the characters on the wired controller screen will disappear after cutting off the
power supply.
GMV DC Air Handler
17
7 Table of Error Codes for Indoor Unit
Error
Code
Content
Error
Code
Content
Error
Code
Content
L0
Indoor Unit Error
L9
Quantity Of Group Control
Indoor Units Setting Error
d8
Water Temperature Sensor
Error
L1
Indoor Fan
Protection
LA
Indoor Units Incompatibility
Error
d9
Jumper Cap Error
L2
E-heater
Protection
LH
Low Air Quanlity Warning
dA
Indoor Unit
Hardware Address Error
L3
Water Full
Protection
LC
Outdoor-Indoor
Incompatibility Error
dH
Wired Controller PC-Board
Error
L4
Wired Controller
Power Supply
Error
d1
Indoor Unit PC-Board Error
dC
Capacity DIP Switch Setting
Error.
L5
Anti-Frosting
Protection
d3
Ambient Temperature
Sensor Error
dL
Outlet Air Temperature
Sensor Error
L7
No Master Indoor
Unit Error
d4
Inlet Pipe Temperature
Sensor Error
dE
Indoor Unit CO
2 Sensor
Error
L8
Power
Insuîciency
Protection
d6
Outlet Pipe Temperature
Sensor Error
db
Special Code:
Field Debugging Code
8 Troubleshooting
The air conditioner is not expected to be serviced by users. Incorrect repair may cause
electric shock or îre, so please contact an authorized service center for professional service.
The following checks prior to contact may save your time and money.
Phenomenon
Troubleshooting
The unit canât start
â Power supply is not connected.
⥠Circuit breaker tripping caused by leakage of electricity.
âą Input voltage is too low.
⣠Defect of main PC-board.
The unit stops after
running for a while.
â The inlet or outlet of ODU or IDU are blocked by obstacle.
Poor cooling eîect
â The îlter is dirty.
⥠Too heavy heat load of room (e.g. too many people)
âą Door or windows is open.
⣠Inlet and outlet of IDU are blocked.
†Setting temperature is too high.
â„ Refrigerant is insufîcient (e.g. refrigerant leakage)
Poor heating eîect
â The îlter is dirty.
⥠Door or window is open.
âą Setting temperature is too low.
⣠Refrigerant is insufîcient (e.g. refrigerant leakage)
Indoor fan doesnât start
up during heating
â At starting, the IDU fan could not operate till the heat exchange become hot,
for preventing delivering the cool air.
⥠At defrosting, the IDU fan stopped due to system switch to cooling mode. For
preventing delivering the cool air, and resume operating after defrosting.
Note:
If air conditioner still fails to work normally after checking and handling as described above,
please stop using it immediately and contact local service center for assistance.
Produktspezifikationen
Marke: | Gree |
Kategorie: | Klimaanlage |
Modell: | GMV-ND48A/A-T(U) |
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